US4107387AExpiredUtility

Resistance material

72
Assignee: PHILIPS CORPPriority: Mar 15, 1976Filed: Mar 8, 1977Granted: Aug 15, 1978
Est. expiryMar 15, 1996(expired)· nominal 20-yr term from priority
Inventors:Alexander H. BoonstraCornelis Adrianus Henricus Antonius Mutsaers
H01C 7/023H01C 17/0654
72
PatentIndex Score
14
Cited by
3
References
13
Claims

Abstract

A resistance material consisting of a mixture of metal oxide and/or metal oxidic compounds and any metals with a binder, which material comprises a metal rhodate of the type M 3 Rh 7 O 15 , by way of resistance determining component. This material has a small negative TCR which is substantially constant in a large temperature range.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A resistance material, consisting of a mixture of a glass binder and metal oxides with a resistance-determining component comprising a metal rhodate of the composition Pb 3  Rh 7  O 15 . 
     
     
       2. A material as claimed in claim 1, further comprising a compound of the type M' 2  M" 2  O 6-7  wherein M' is lead and M" is a rare metal chosen from Ru, Os or Ir, having a positive temperature coefficient (TCR) in such quanity that a desired level of the TCR is achieved. 
     
     
       3. A material as claimed in claim 1, further comprising a RuO 2  component with positive TCR. 
     
     
       4. A resistance material, consisting of a mixture of a glass binder and metal oxides with a resistance-determining component comprising a metal rhodate of the composition Sr 3  RhO 15 . 
     
     
       5. A material as claimed in claim 4, further comprising a compound of the type M' 2  M" 2  O 6-7  wherein M' is lead and M" is a rare metal chosen from Ru, Os or Ir, having a positive temperature coefficient (TCR) in such quantity that a desired level of the TCR is achieved. 
     
     
       6. A material as claimed in claim 4, further comprising a RuO 2  component with positive TCR. 
     
     
       7. A resistance material, consisting of a mixture of a polymeric binder and metal oxides with a resistance-determining component comprising a metal rhodate of the composition Sr 3  RhO 15 . 
     
     
       8. A material as claimed in claim 7, further comprising a compound of the type M' 2  M" 2  O 6-7  wherein M' is lead and M" is a rare metal chosen from Ru, Os or Ir, having a positive temperature coefficient (TCR) in such quantity that a desired level of the TCR is achieved. 
     
     
       9. A material as claimed in claim 8, further comprising a RuO 2  component with positive TCR. 
     
     
       10. A resistance material, consisting of a mixture of a polymeric binder and metal oxides with a resistance-determining component comprising a metal rhodate of the composition Pb 3  RhO 15 . 
     
     
       11. A material as claimed in claim 10, further comprising a compound of the type M' 2  M" 2  O 6-7  wherein M' is lead and M" is a rare metal chosen from Ru, Os or Ir, having a positive temperature coefficient (TCR) in such quantity that a desired level of the TCR is achieved. 
     
     
       12. A material as claimed in claim 11, further comprising a RuO 2  component with positive TCR. 
     
     
       13. A resistance body comprising a substrate to which a resistance material is adhered consisting of a mixture of a glass binder and metal oxides with a resistance-determining component comprising a metal rhodate of the composition Pb 3  Rh 7  O 15 .

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